A kind of bioplastic for making degradable film and preparation method
A bioplastic and degradable film technology, applied in the field of biodegradable plastics and functional plastics, can solve the problems of reduced film strength, limited PBAT addition, poor compatibility, etc., achieving low cost, easy availability of raw materials, and easy control of the preparation process. Effect
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Embodiment 1
[0040] (1) Weigh 1,4-butanediol, adipic acid, and terephthalic acid according to the molar ratio of 8:2.2:1.8 for later use as premixed material A;
[0041] (2) Weigh 2 kg of the premixed material A obtained in step (1) and add it to the reactor, weigh 20 g of the catalyst tetrabutyl titanate and stir evenly; Reactor stirring paddle, stirring at a low speed of 40rpm, turn on the vacuum pump, stabilize the vacuum pressure gauge at -0.08MPa for 15 minutes, turn off the vacuum pump, maintain a low speed stirring of 40rpm, react at 180°C for 150min in the reaction kettle; raise the temperature to 240°C, adjust the temperature Reaction pressure is 50Pa, polycondensation 80min, discharge, obtain material B;
[0042] (3) Cool the material B obtained in step (2), crush it, weigh 5kg, weigh 510.1kg of epoxy resin E, 0.05kg of polyethylene wax and add it to a ball mill, and use zirconia balls as the grinding medium for ball milling for 10min, and grind and disperse to obtain Material C...
Embodiment 2
[0045] (1) Weigh 1,4-butanediol, adipic acid, and terephthalic acid according to the molar ratio of 8:2.2:1.8 for later use as premixed material A;
[0046] (2) Weigh 2 kg of the premixed material A obtained in step (1) and add it to the reactor, weigh 30 g of the catalyst tetrabutyl titanate and stir evenly; then add 7 kg of diatomite with a particle diameter of less than 5 μm and a porosity > 50%, Start the stirring paddle of the reactor, stir at a low speed of 40rpm, turn on the vacuum pump, stabilize the vacuum pressure gauge at -0.08MPa for 15 minutes, turn off the vacuum pump, maintain the stirring at a low speed of 40rpm, and react the reactor at 165°C for 150min; the temperature rises to 240°C, adjust The temperature reaction pressure is 40Pa, the polycondensation is 80min, and the material is discharged to obtain the material B;
[0047] (3) Cool the material B obtained in step (2), crush it, weigh 5kg, weigh 440.125kg of epoxy resin, 0.075kg of polyethylene wax and a...
Embodiment 3
[0050] (1) Weigh 1,4-butanediol, adipic acid, and terephthalic acid according to the molar ratio of 8:2.2:1.8 for later use as premixed material A;
[0051] (2) Weigh 2 kg of the premixed material A obtained in step (1) and add it to the reactor, weigh 30 g of the catalyst tetrabutyl titanate and stir evenly; then add 6 kg of hollow glass microspheres with a particle size less than 5 μm and a porosity greater than 35%, Start the stirring paddle of the reactor, stir at a low speed of 40rpm, turn on the vacuum pump, stabilize the vacuum pressure gauge at -0.08MPa for 10 minutes, turn off the vacuum pump, maintain the stirring at a low speed of 40rpm, and react at 170°C for 120min in the reactor; the temperature rises to 240°C, adjust The temperature reaction pressure is 50Pa, the polycondensation is 100min, and the material is discharged to obtain the material B;
[0052] (3) Cool the material B obtained in step (2), crush it, weigh 5kg, weigh 40.1kg of epoxy resin E, 0.075kg of...
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